Carl Edward Sagan (/ ˈ s eɪ ɡ ən /; SAY-gən; November 9, 1934 – December 20, 1996) was an American astronomer, planetary scientist and science communicator.

Apr 11, 2025 · Carl Sagan, American astronomer and science writer. A popular and influential figure in the United States, he was controversial in scientific, political, and religious circles for …

Apr 2, 2014 · Best Known For: Carl Sagan was one of the most well-known scientists of the 1970s and 1980s. He studied extraterrestrial intelligence, advocated for nuclear disarmament and...

Carl Edward Sagan (November 9, 1934 – December 20, 1996) was an American astronomer. He was very interested in what extraterrestrial life on other planets would be like, which is known …

Nov 4, 2024 · Carl Sagan (1934 – 1996) played a leading role in the American space program from its very beginning. He was a consultant and adviser to NASA beginning in the 1950s — …

We live in Carl Sagan’s universe–awesomely vast, deeply humbling. It’s a universe that, as Sagan reminded us again and again, isn’t about us. We’re a granular element. Our presence may …

Carl Edward Sagan was an American astronomer, cosmologist, astrophysicist, astrobiologist, and author. He developed an interest in astronomy quite early at the age of five he first learned …

Nov 8, 2024 · With unusual breadth in astronomy, physics, chemistry and biology, Sagan pushed forward the nascent discipline of astrobiology — the study of life in the universe.

Nov 9, 2023 · Carl Sagan was a multifaceted American scientist known for his work in astronomy, cosmology, astrophysics, astrobiology, and for his immense contribution to the popularization …

Carl Sagan lobbied NASA for ten years to command the Voyager 1 spacecraft to turn its camera homeward to take one last picture from beyond the orbits of Neptune and Pluto. On …